Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Cascade control Combination of cascade and pole changing Rheostat control Pole changing Cascade control Combination of cascade and pole changing Rheostat control Pole changing ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Specific energy consumption is affected by which of the following factors? Retardation and acceleration values Gradient All of the listed here Distance between stops Retardation and acceleration values Gradient All of the listed here Distance between stops ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of locomotives the tractive power is provided by Double cylinder, double acting steam engine Single stage steam turbine Single cylinder double acting steam engine Double cylinder, single acting steam engine Double cylinder, double acting steam engine Single stage steam turbine Single cylinder double acting steam engine Double cylinder, single acting steam engine ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Vacuum is created by which of the following? Any of the listed here Vacuum pump None of the listed here Ejector Any of the listed here Vacuum pump None of the listed here Ejector ANSWER DOWNLOAD EXAMIANS APP
Electric Traction ________ have maximum unbalanced forces. Diesel locomotives All of the listed here Steam locomotives Electric locomotives Diesel locomotives All of the listed here Steam locomotives Electric locomotives ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The air resistance to the movement of the train is proportional to 1/speed (speed)2 speed (speed)3 1/speed (speed)2 speed (speed)3 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS